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phenazone : ウィキペディア英語版
phenazone

Phenazone (INN and BAN; also known as phenazon, antipyrine (USAN), or analgesine) is an analgesic, a non-steroidal anti-inflammatory drug and an antipyretic. It was first synthesized by Ludwig Knorr in 1887.〔Enrique Ravina. The Evolution of Drug Discovery: From Traditional Medicines to Modern Drugs. John Wiley & Sons, 2011 ISBN 9783527326693〕 Phenazone is synthesized〔https://books.google.ca/books?id=07g30rxCA0EC&lpg=PA225&ots=KjJPobMfjq&dq=synthesis%20of%20phenazone&pg=PA226#v=onepage&q=synthesis%20of%20phenazone&f=false〕 by condensation of phenylhydrazine and ethyl acetoacetate under basic conditions and methylation of the resulting intermediate compound 1-phenyl-3-methylpyrazolone〔http://www.chemspider.com/Chemical-Structure.63516.html〕 with dimethyl sulfate or methyl iodide. It crystallizes in needles which melt at 156 °C. Potassium permanganate oxidizes it to pyridazine tetracarboxylic acid. Phenazone has an elimination half life of about 12 hours.〔http://www.mims.com/USA/drug/info/phenazone/?q=Other%20Ear%20Preparations&type=full〕
Indication: Used to relieve pain and fever. Antipyrine is often used in testing the effects of other drugs or diseases on drug-metabolizing enzymes in the liver.〔http://www.medicatione.com/?c=ing&s=antipyrine〕
==Adverse effects==
Possible adverse effects include:
* Allergy to pyrazolones
* Nausea
* Agranulocytosis
* Hepatotoxicity

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「phenazone」の詳細全文を読む



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